Dog skin rashes can be difficult to get rid of once your dog starts to scratch. Rashes can be caused by mange, parasites, heat, allergens, or infection. Most rashes are immune system disorders that must be detected early by examining your dog's skin and coat. If your dog starts to scratch continually at one or more areas of his body, take him to the veterinarian.
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Parasites
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Fleas, ticks, ringworm or mange can cause mild to severe rashes. The more your dog scratches, the more inflamed the area will become and the higher the risk of infection. Most parasitic infestations can be prevented or controlled. Administering monthly preventative treatment lessens the risk of infection. Special shampoos can also help control fleas and ticks and keep your dog's skin healthy. Feeding your dog a quality food will boost her immune system and help her fight off infections.
External Allergens
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Dogs can be allergic to household chemicals, pesticides, grass, trees, and pollens. It is better to treat your dog's allergies at the onset of symptoms. If you're aware that your dog has problems with allergies, check his body daily for scabs, rashes or dry patches. Take your dog to the veterinarian if the inflammation or itchiness doesn't go away within a day or two.
Infections
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Yeast infection is a common skin problem that causes a rash in your dog's ears or on any part of his body. The more your dog scratches himself because of fleas or other parasites, the more prone he will be to a yeast infection. Antibiotics will usually clear up a yeast infection and can only be prescribed by a veterinarian.
Dogs are prone to moist dermatitis, commonly referred to as hot spots. Hot spots can be caused by fleas, bacterial infections, or allergies. Your dog may scratch at these hot spots until they bleed if not detected early. Your veterinarian may prescribe cool compresses, antibiotics or a topical spray or ointment for hot spots.
Heat Rash
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Dogs, like humans, are susceptible to heat rash. Keep the folds of your dog's skin, and areas under his legs or wrinkles on his face, dry and clean. Heat rash may clear up on its own but keep an eye on it so that it doesn't spread to other areas of his body.
Food Allergies
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Dogs can develop food allergies at any time. If you've changed your dog's food and notice that she started itching, switch her back to the original food. Dogs can develop infections due to food allergies so you will want to introduce a new food slowly. Ask your veterinarian for suggestions if you plan on changing your dog's diet.
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